Cetus - the Whale
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Preliminary Catalogue of Isaac Roberts's Collection of Photographs of Celestial Objects
ASTRONOMISCHE NACHRICHTEN. Nr. 4154. Band 174. 2. Preliminary catalogue of Isaac Roberts’s collection of photographs of celestial objects. By Dorotha Isaac-Roberts. The Isaac Roberts collection of celestial photographs The number of the copies of the forthcoming paper comprises 2485 original negatives of stars, star-clusters, being very limited, the observatories and astronomers, official nebulae and other celestial objects together with many posi. or amateur, who are specially interested in photographic tives on glass and on paper, taken by the late Dr. Isaac astronomy will please send in their names to the address Roberts or, under his incessant supervision, by his assistant given below, early in 1907, in order that the various parts W. S. Franks, F. R. A. S., at Dr. Roberts’s Private Obser- of the complete catalogue may be sent to them in course vatory, Kennessee, Maghull, near Liverpool (1885-1 890) and, of time. from 1890 to 1904, at Starfield, Crowborough, Sussex. Positives- on-glass reproduced from the Isaac Roberts Of the above mentioned negatives, negatives will be lent for the purpose of micrometric mea- I) 1412 were taken with the zo-in Reflector (focal surements, if, application be made and provided that the length = 98.0 ins) and with an exposure of the plate of documents be returned after completion of the measurements. ninety minutes in general. In the preliminary catalogue given below, the numbers 2) 648 with the 5-in Cooke lens (f. 1. = 19.22 ins) of Dr. Dreyer’s New General Catalogue of Nebulae and which was mounted on the tube of the zo-in Reflector; or, Clusters of Stars and of Dr. -
Extra-Nuclear Starbursts: Young Luminous Hinge Clumps In
Extra-Nuclear Starbursts: Young Luminous Hinge Clumps in Interacting Galaxies Beverly J. Smith1, Roberto Soria2, Curtis Struck3, Mark L. Giroux1, Douglas A. Swartz4, and Mihoko Yukita5 ABSTRACT Hinge clumps are luminous knots of star formation near the base of tidal features in some interacting galaxies. We use archival Hubble Space Telescope UV/optical/IR images and Chandra X-ray maps along with GALEX UV, Spitzer IR, and ground-based optical/near-IR images to investigate the star forming properties in a sample of 12 hinge clumps in five interacting galaxies. 1 The most extreme of these hinge clumps have star formation rates of 1 9 M yr− , comparable to or larger than the ‘overlap’ region of intense star formation between− the⊙ two disks of the colliding galaxy system the Antennae. In the HST images, we have found remarkably large and luminous sources at the centers of these hinge clumps. These objects are much larger and more luminous than typical ‘super-star clusters’ in interacting galaxies, and are sometimes embedded in a linear ridge of fainter star clusters, consistent with star formation along a narrow caustic. These central sources have diameters of 70 pc, compared to 3 pc in ‘ordinary’ super-star clusters. ∼ ∼ Their absolute I magnitudes range from MI 12.2 to 16.5, thus if they are individual star clusters they would lie near the top of the ‘super∼ − star cluster’− luminosity function of star clusters. These sources may not be individual star clusters, but instead may be tightly packed groups of clusters that are blended together in the HST images. -
Bibliography of Refereed Papers: Roger L
Bibliography of refereed papers: Roger L. Davies 203 refereed papers, >24,000 citations, h=75 62 papers >100 citations; 13 papers >500 citations and one has more than 1000 citations. [203] Francesco D'Eugenio, Matthew Colless, Nicholas Scott, Arjen van der Wel, Roger L. Davies, Jesse van de Sande, Sarah M. Sweet, Sree Oh, Brent Groves, Rob Sharp, Matt S. Owers, Joss Bland-Hawthorn, Scott M. Croom, Sarah Brough, Julia J. Bryant, Michael Goodwin, Jon S. Lawrence, Nuria P. F. Lorente, and Samuel N. Richards. The SAMI Galaxy Survey: stellar population and structural trends across the Fundamental Plane. MNRAS, April 2021. [202] Scott M. Croom, Matt S. Owers, Nicholas Scott, Henry Poetrodjojo, Brent Groves, Jesse van de Sande, Tania M. Barone, Luca Cortese, Francesco D'Eugenio, Joss Bland-Hawthorn, Julia Bryant, Sree Oh, Sarah Brough, James Agostino, Sarah Casura, Barbara Catinella, Matthew Colless, Gerald Cecil, Roger L. Davies, Michael J. Drinkwater, Simon P. Driver, Ignacio Ferreras, Caroline Foster, Amelia Fraser-McKelvie, Jon Lawrence, Sarah K. Leslie, Jochen Liske, Angel´ R. L´opez-S´anchez, Nuria P. F. Lorente, Rebecca McElroy, Anne M. Medling, Danail Obreschkow, Samuel N. Richards, Rob Sharp, Sarah M. Sweet, Dan S. Taranu, Edward N. Taylor, Edoardo Tescari, Adam D. Thomas, James Tocknell, and Sam P. Vaughan. The SAMI Galaxy Survey: the third and final data release. MNRAS, February 2021. [201] Romina Ahumada and others. The 16th Data Release of the Sloan Digital Sky Surveys: First Release from the APOGEE-2 Southern Survey and Full Release of eBOSS Spectra. ApJS, 249(1):3, July 2020. [200] S. -
The X-Ray Luminosity Function of Ultra Luminous X-Ray Sources in Collisional Ring Galaxies
Draft version June 8, 2018 Typeset using LATEX twocolumn style in AASTeX62 The X-Ray Luminosity Function of Ultra Luminous X-Ray Sources in Collisional Ring Galaxies Anna Wolter,1 Antonella Fruscione,2 and Michela Mapelli3 1INAF-Osservatorio Astronomico di Brera, via Brera 28, 20121 Milano, Italy 2Harvard-Smithsonian Center for Astrophysics, 60 Garden St., Cambdidge, MA, 02138 3INAF-Osservatorio Astronomico di Padova, vicolo dell'Osservatorio 5, 35122, Padova, Italy (Received March, 7th, 2018; Accepted June, 5th, 2018) Submitted to The Astrophysical Journal ABSTRACT Ring galaxies are fascinating laboratories: a catastrophic impact between two galaxies (one not much smaller than the other) has produced fireworks especially in the larger one, when hit roughly perpendicularly to the plane. We analyze the point sources, produced by the starburst episode following the impact, in the rings of seven galaxies and determine their X-ray luminosity function (XLF). In 39 −1 total we detect 63 sources, of which 50 have luminosity LX ≥ 10 erg s , classifying them as ultra luminous X-ray sources (ULXs). We find that the total XLF is not significantly different from XLFs derived for other kinds of galaxies, with a tendency of having a larger fraction of high X-ray luminosity objects. Both the total number of ULXs and the number of ULXs per unit star formation rate are found in the upper envelope of the more normal galaxies distribution. Further analysis would be needed to address the issue of the nature of the compact component in the binary system. Keywords: galaxies: individual (AM0644-741, Arp143, Arp148) - galaxies: peculiar - galaxies: star formation - X-ray binaries 1. -
Alma Observations of Warm Molecular Gas and Cold Dust in Ngc 34∗
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Caltech Authors The Astrophysical Journal, 787:48 (10pp), 2014 May 20 doi:10.1088/0004-637X/787/1/48 C 2014. The American Astronomical Society. All rights reserved. Printed in the U.S.A. ALMA OBSERVATIONS OF WARM MOLECULAR GAS AND COLD DUST IN NGC 34∗ C. K. Xu1,C.Cao1,2,3,N.Lu1,Y.Gao4, P. van der Werf5,A.S.Evans6,7, J. M. Mazzarella1, J. Chu8,S.Haan9, T. Diaz-Santos1, R. Meijerink5, Y.-H. Zhao1,4, P. Appleton1, L. Armus1, V. Charmandaris10,11,12,S.Lord1, E. J. Murphy1, D. B. Sanders8, B. Schulz1, and S. Stierwalt6,13 1 Infrared Processing and Analysis Center, MS 100-22, California Institute of Technology, Pasadena, CA 91125, USA 2 School of Space Science and Physics, Shandong University at Weihai, Weihai, Shandong 264209, China; [email protected] 3 Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Weihai, Shandong 264209, China 4 Purple Mountain Observatory, Chinese Academy of Sciences, 2 West Beijing Road, Nanjing 210008, China 5 Leiden Observatory, Leiden University, P.O. Box 9513, NL-2300 RA Leiden, Netherlands 6 Department of Astronomy, University of Virginia, P.O. Box 400325, Charlottesville, VA 22904, USA 7 National Radio Astronomy Observatory, Charlottesville, VA 22904, USA 8 Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96816, USA 9 CSIRO Astronomy and Space Science, ATNF, P.O. Box 76, Epping 1710, Australia 10 Department of Physics, University of Crete, GR-71003, Heraklion, Greece 11 Institute for Astronomy, Astrophysics, Space Applications & Remote Sensing, National Observatory of Athens, GR-15236, Penteli, Greece 12 Chercheur Associe,´ Observatoire de Paris, F-75014, Paris, France 13 Spitzer Science Center, California Institute of Technology, 1200 E. -
Astronomy Magazine 2011 Index Subject Index
Astronomy Magazine 2011 Index Subject Index A AAVSO (American Association of Variable Star Observers), 6:18, 44–47, 7:58, 10:11 Abell 35 (Sharpless 2-313) (planetary nebula), 10:70 Abell 85 (supernova remnant), 8:70 Abell 1656 (Coma galaxy cluster), 11:56 Abell 1689 (galaxy cluster), 3:23 Abell 2218 (galaxy cluster), 11:68 Abell 2744 (Pandora's Cluster) (galaxy cluster), 10:20 Abell catalog planetary nebulae, 6:50–53 Acheron Fossae (feature on Mars), 11:36 Adirondack Astronomy Retreat, 5:16 Adobe Photoshop software, 6:64 AKATSUKI orbiter, 4:19 AL (Astronomical League), 7:17, 8:50–51 albedo, 8:12 Alexhelios (moon of 216 Kleopatra), 6:18 Altair (star), 9:15 amateur astronomy change in construction of portable telescopes, 1:70–73 discovery of asteroids, 12:56–60 ten tips for, 1:68–69 American Association of Variable Star Observers (AAVSO), 6:18, 44–47, 7:58, 10:11 American Astronomical Society decadal survey recommendations, 7:16 Lancelot M. Berkeley-New York Community Trust Prize for Meritorious Work in Astronomy, 3:19 Andromeda Galaxy (M31) image of, 11:26 stellar disks, 6:19 Antarctica, astronomical research in, 10:44–48 Antennae galaxies (NGC 4038 and NGC 4039), 11:32, 56 antimatter, 8:24–29 Antu Telescope, 11:37 APM 08279+5255 (quasar), 11:18 arcminutes, 10:51 arcseconds, 10:51 Arp 147 (galaxy pair), 6:19 Arp 188 (Tadpole Galaxy), 11:30 Arp 273 (galaxy pair), 11:65 Arp 299 (NGC 3690) (galaxy pair), 10:55–57 ARTEMIS spacecraft, 11:17 asteroid belt, origin of, 8:55 asteroids See also names of specific asteroids amateur discovery of, 12:62–63 -
Doctor of Philosophy
BIBLIOGRAPHY 152 Chapter 4 WALLABY Early Science - III. An H I Study of the Spiral Galaxy NGC 1566 ABSTRACT This paper reports on the atomic hydrogen gas (HI) observations of the spiral galaxy NGC 1566 using the newly commissioned Australian Square Kilometre Array Pathfinder (ASKAP) radio telescope. This spiral galaxy is part of the Dorado loose galaxy group, which has a halo mass of 13:5 1 10 M . We measure an integrated HI flux density of 180:2 Jy km s− emanating from this ∼ galaxy, which translates to an HI mass of 1:94 1010 M at an assumed distance of 21:3 Mpc. Our × observations show that NGC 1566 has an asymmetric and mildly warped HI disc. The HI-to-stellar mass fraction (MHI/M ) of NGC 1566 is 0:29, which is high in comparison with galaxies that have ∗ the same stellar mass (1010:8 M ). We also derive the rotation curve of this galaxy to a radius of 50 kpc and fit different mass models to it. The NFW, Burkert and pseudo-isothermal dark matter halo profiles fit the observed rotation curve reasonably well and recover dark matter fractions of 0:62, 0:58 and 0:66, respectively. Down to the column density sensitivity of our observations 19 2 (NHI = 3:7 10 cm ), we detect no HI clouds connected to, or in the nearby vicinity of, the × − HI disc of NGC 1566 nor nearby interacting systems. We conclude that, based on a simple analytic model, ram pressure interactions with the IGM can affect the HI disc of NGC 1566 and is possibly the reason for the asymmetries seen in the HI morphology of NGC 1566. -
190 Index of Names
Index of names Ancora Leonis 389 NGC 3664, Arp 005 Andriscus Centauri 879 IC 3290 Anemodes Ceti 85 NGC 0864 Name CMG Identification Angelica Canum Venaticorum 659 NGC 5377 Accola Leonis 367 NGC 3489 Angulatus Ursae Majoris 247 NGC 2654 Acer Leonis 411 NGC 3832 Angulosus Virginis 450 NGC 4123, Mrk 1466 Acritobrachius Camelopardalis 833 IC 0356, Arp 213 Angusticlavia Ceti 102 NGC 1032 Actenista Apodis 891 IC 4633 Anomalus Piscis 804 NGC 7603, Arp 092, Mrk 0530 Actuosus Arietis 95 NGC 0972 Ansatus Antliae 303 NGC 3084 Aculeatus Canum Venaticorum 460 NGC 4183 Antarctica Mensae 865 IC 2051 Aculeus Piscium 9 NGC 0100 Antenna Australis Corvi 437 NGC 4039, Caldwell 61, Antennae, Arp 244 Acutifolium Canum Venaticorum 650 NGC 5297 Antenna Borealis Corvi 436 NGC 4038, Caldwell 60, Antennae, Arp 244 Adelus Ursae Majoris 668 NGC 5473 Anthemodes Cassiopeiae 34 NGC 0278 Adversus Comae Berenices 484 NGC 4298 Anticampe Centauri 550 NGC 4622 Aeluropus Lyncis 231 NGC 2445, Arp 143 Antirrhopus Virginis 532 NGC 4550 Aeola Canum Venaticorum 469 NGC 4220 Anulifera Carinae 226 NGC 2381 Aequanimus Draconis 705 NGC 5905 Anulus Grahamianus Volantis 955 ESO 034-IG011, AM0644-741, Graham's Ring Aequilibrata Eridani 122 NGC 1172 Aphenges Virginis 654 NGC 5334, IC 4338 Affinis Canum Venaticorum 449 NGC 4111 Apostrophus Fornac 159 NGC 1406 Agiton Aquarii 812 NGC 7721 Aquilops Gruis 911 IC 5267 Aglaea Comae Berenices 489 NGC 4314 Araneosus Camelopardalis 223 NGC 2336 Agrius Virginis 975 MCG -01-30-033, Arp 248, Wild's Triplet Aratrum Leonis 323 NGC 3239, Arp 263 Ahenea -
Ngc Catalogue Ngc Catalogue
NGC CATALOGUE NGC CATALOGUE 1 NGC CATALOGUE Object # Common Name Type Constellation Magnitude RA Dec NGC 1 - Galaxy Pegasus 12.9 00:07:16 27:42:32 NGC 2 - Galaxy Pegasus 14.2 00:07:17 27:40:43 NGC 3 - Galaxy Pisces 13.3 00:07:17 08:18:05 NGC 4 - Galaxy Pisces 15.8 00:07:24 08:22:26 NGC 5 - Galaxy Andromeda 13.3 00:07:49 35:21:46 NGC 6 NGC 20 Galaxy Andromeda 13.1 00:09:33 33:18:32 NGC 7 - Galaxy Sculptor 13.9 00:08:21 -29:54:59 NGC 8 - Double Star Pegasus - 00:08:45 23:50:19 NGC 9 - Galaxy Pegasus 13.5 00:08:54 23:49:04 NGC 10 - Galaxy Sculptor 12.5 00:08:34 -33:51:28 NGC 11 - Galaxy Andromeda 13.7 00:08:42 37:26:53 NGC 12 - Galaxy Pisces 13.1 00:08:45 04:36:44 NGC 13 - Galaxy Andromeda 13.2 00:08:48 33:25:59 NGC 14 - Galaxy Pegasus 12.1 00:08:46 15:48:57 NGC 15 - Galaxy Pegasus 13.8 00:09:02 21:37:30 NGC 16 - Galaxy Pegasus 12.0 00:09:04 27:43:48 NGC 17 NGC 34 Galaxy Cetus 14.4 00:11:07 -12:06:28 NGC 18 - Double Star Pegasus - 00:09:23 27:43:56 NGC 19 - Galaxy Andromeda 13.3 00:10:41 32:58:58 NGC 20 See NGC 6 Galaxy Andromeda 13.1 00:09:33 33:18:32 NGC 21 NGC 29 Galaxy Andromeda 12.7 00:10:47 33:21:07 NGC 22 - Galaxy Pegasus 13.6 00:09:48 27:49:58 NGC 23 - Galaxy Pegasus 12.0 00:09:53 25:55:26 NGC 24 - Galaxy Sculptor 11.6 00:09:56 -24:57:52 NGC 25 - Galaxy Phoenix 13.0 00:09:59 -57:01:13 NGC 26 - Galaxy Pegasus 12.9 00:10:26 25:49:56 NGC 27 - Galaxy Andromeda 13.5 00:10:33 28:59:49 NGC 28 - Galaxy Phoenix 13.8 00:10:25 -56:59:20 NGC 29 See NGC 21 Galaxy Andromeda 12.7 00:10:47 33:21:07 NGC 30 - Double Star Pegasus - 00:10:51 21:58:39 -
Ultraluminous X-Ray Sources in Arp 147
ULTRALUMINOUS X-RAY SOURCES IN ARP 147 The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Citation Rappaport, S., A. Levine, D. Pooley, and B. Steinhorn. “ULTRALUMINOUS X-RAY SOURCES IN ARP 147.” The Astrophysical Journal 721, no. 2 (September 9, 2010): 1348–1355. © 2010 The American Astronomical Society As Published http://dx.doi.org/10.1088/0004-637x/721/2/1348 Publisher IOP Publishing Version Final published version Citable link http://hdl.handle.net/1721.1/95696 Terms of Use Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The Astrophysical Journal, 721:1348–1355, 2010 October 1 doi:10.1088/0004-637X/721/2/1348 C 2010. The American Astronomical Society. All rights reserved. Printed in the U.S.A. ULTRALUMINOUS X-RAY SOURCES IN ARP 147 S. Rappaport1, A. Levine2, D. Pooley3, and B. Steinhorn1 1 37-602B, M.I.T. Department of Physics and Kavli Institute for Astrophysics and Space Research, 70 Vassar Street, Cambridge, MA 02139, USA; [email protected] 2 37-575 M.I.T. Kavli Institute for Astrophysics and Space Research, 70 Vassar Street, Cambridge, MA 02139, USA; [email protected] 3 Eureka Scientific, 5248 Valley View Road El Sobrante, CA 94803-3435, USA; [email protected] Received 2010 July 16; accepted 2010 August 2; published 2010 September 9 ABSTRACT The Chandra X-Ray Observatory was used to image the collisional ring galaxy Arp 147 for 42 ks. -
ARP Peculiar Galaxies
October 25, 2012 ARP Peculiar Galaxies Observed: No ARP Object Con Type Mag Alias/Notes 249 PGC 25 Peg Glxy Double System 15 UGC 12891 MCG 4-1-7 CGCG 477-37 CGCG 478-9 4ZW177 VV 186 ARP 249 112 PGC 111 Peg Glxy S 16.6 MCG 5-1-26 VV 226 ARP 112 130 PGC 178 Peg Glxy SB 15.3 UGC 1 MCG 3-1-16 CGCG 456-18 VV 263 ARP 130 130 PGC 177 Peg Glxy S 14.9 UGC 1 MCG 3-1-15 CGCG 456-18 VV 263 ARP 130 51 PGC 475 Cet Glxy 15 ESGC 144 NGC 7828 Cet Glxy Ring B 14.4 MCG -2-1-25 VV 272 ARP 144 IRAS 38-1341 PGC 483 144 NGC 7829 Cet Glxy Ring A 14.6 MCG -2-1-24 VV 272 ARP 144 PGC 488 146 PGC 510 Cet Glxy Ring A 16.3 ANON 4-6A 146 PGC 509 Cet Glxy Ring B 16.3 ANON 4-6B 246 NGC 7837 Psc Glxy Sb 15.4 MCG 1-1-35 CGCG 408-34 ARP 246 IRAS 42+804 PGC 516 246 NGC 7838 Psc Glxy Sb 15.3 MCG 1-1-36 CGCG 408-34 ARP 246 PGC 525 256 PGC 1224 Cet Glxy SB(s)b pec? 14.8 MCG -2-1-51 VV 352 ARP 256 8ZW18 256 PGC 1221 Cet Glxy SB(s)c pec 13.6 MCG -2-1-52 VV 352 ARP 256 IRAS 163-1039 8ZW18 35 PGC 1431 Psc Glxy S 15.5 KUG 19-16 35 PGC 1434 Psc Glxy SB 14.7 UGC 212 MCG 0-2-14 MCG 0-2-15 CGCG 383-4 UM231 VV 257 ARP 35 IRAS 198-134 201 PGC 1503 Psc Glxy Disrupted 15.4 UGC 224 MCG 0-2-18 CGCG 383-6 VV 38 ARP 201 201 PGC 1504 Psc Glxy L 15.4 UGC 224 MCG 0-2-19 VV 38 ARP 201 100 IC 18 Cet Glxy Sb 15.4 MCG -2-2-23 VV 234 ARP 100 8ZW25 PGC 1759 100 IC 19 Cet Glxy E 15 MCG -2-2-24 MK 949 PGC 1762 19 NGC 145 Cet Glxy SB(s)dm 13.2 MCG -1-2-27 ARP 19 IRAS 292-525 PGC 1941 282 IC 1559 And Glxy SAB0 pec: 14 MCG 4-2-34 MK 341 CGCG 479-44 ARP 282 PGC 2201 127 IC 1563 Cet Glxy S0 pec sp 13.6 MCG -
Evaluation of the National Guideline Clearinghouse (NGC)
Final Report Evaluation of AHRQ’s National Guideline Clearinghouse™ (NGC) Agency for Healthcare Research and Quality August 31, 2011 AFYA, Inc. 8101 Sandy Spring Road, Third Floor Laurel, MD 20707 Final Contract Report: NGC Evaluation Final Submitted: 9/29/2011 Final Contract Report Evaluation of AHRQ’s National Guideline Clearinghouse™ (NGC) Prepared for: Agency for Healthcare Research and Quality U.S. Department of Health and Human Services 540 Gaither Road Rockville, MD 20850 www.ahrq.gov Prepared by: AFYA, Inc. Analytical and Technical Support Division 8101 Sandy Spring Road, Third Floor Laurel, MD 20707 Authors: Michelle Bieber-Tregear AFYA, Inc. Jenice James AFYA, Inc. Debra Dekker AFYA, Inc. Craig Dearfield AFYA, Inc. Jaclyn Marshall Lewin Group Jacob Epstein Lewin Group Carol Simon Lewin Group Financial Declarations None of the authors has any affiliations or financial involvement that conflict with the material presented in this report. Policy Statement This report was prepared by AFYA, Inc. and The Lewin Group under Contract No. 4203; Order No. 3, entitled “Evaluation of the National Guideline Clearinghouse™ (NGC),” with the Department of Health and Human Services’ Agency for Healthcare Research and Quality. Table of Contents List of Figures............................................................................................................................ 5 List of Tables ............................................................................................................................. 6 AHRQ Contract No. 4203;